Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-16-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Plugged in USB drive
Clicked on the icon in Device Notifier
Dolphin started and
Boom!
That's it
Thank you

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7886700 (LWP 2966))]

Thread 2 (Thread 0xac758b70 (LWP 2967)):
#0  0x00a0e422 in __kernel_vsyscall ()
#1  0x00382e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x00ae878d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x0044ce67 in QWaitConditionPrivate::wait (this=0x8d95810, mutex=0x8d9580c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x8d95810, mutex=0x8d9580c, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x03684922 in QHostInfoAgent::run (this=0x8d95800) at kernel/qhostinfo.cpp:260
#6  0x0044be32 in QThreadPrivate::start (arg=0x8d95800) at thread/qthread_unix.cpp:188
#7  0x0037e80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x00adb7ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7886700 (LWP 2966)):
[KCrash Handler]
#6  QGraphicsLayoutItem::isLayout (this=0x9170150) at graphicsview/qgraphicslayoutitem.cpp:784
#7  0x048c00a7 in QGraphicsGridLayout::addItem (this=0x8d6db10, item=0x9515980, row=156326272, column=152502608, rowSpan=1, columnSpan=1, alignment=...) at graphicsview/qgraphicsgridlayout.cpp:158
#8  0x01b6ab18 in TaskItemLayout::layoutItems (this=0x8d6db08) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:375
#9  0x01b73a38 in TaskGroupItem::constraintsChanged (this=0x9168168, constraints=) at ../../../../plasma/applets/tasks/taskgroupitem.cpp:726
#10 0x01b78d45 in TaskGroupItem::qt_metacall (this=0x9168168, _c=QMetaObject::InvokeMetaMethod, _id=27, _a=0xbfe8db98) at ./taskgroupitem.moc:110
#11 0x00552263 in QMetaObject::activate (sender=0x8d73eb8, from_signal_index=36, to_signal_index=36, argv=0xbfe8db98) at kernel/qobject.cpp:3113
#12 0x00552ec2 in QMetaObject::activate (sender=0x8d73eb8, m=0x1b7b7a8, local_signal_index=0, argv=0xbfe8db98) at kernel/qobject.cpp:3187
#13 0x01b64453 in Tasks::constraintsChanged (this=0x8d73eb8, _t1=...) at ./tasks.moc:95
#14 0x01b649f9 in Tasks::constraintsEvent (this=0x8d73eb8, constraints=) at ../../../../plasma/applets/tasks/tasks.cpp:173
#15 0x01414823 in Plasma::Applet::flushPendingConstraintsEvents (this=0x8d73eb8) at ../../plasma/applet.cpp:1178
#16 0x01414f58 in Plasma::Applet::timerEvent (this=0x8d73eb8, event=0xbfe8e1b0) at ../../plasma/applet.cpp:2125
#17 0x0054c3bf in QObject::event (this=0x8d73eb8, e=0xbfe8e1b0) at kernel/qobject.cpp:1075
#18 0x048a9b64 in QGraphicsWidget::event (this=0x8d73eb8, event=0xbfe8e1b0) at graphicsview/qgraphicswidget.cpp:1340
#19 0x04250f54 in QApplicationPrivate::notify_helper (this=0x89f6e20, receiver=0x8d73eb8, e=0xbfe8e1b0) at kernel/qapplication.cpp:4056
#20 0x0425867c in QApplication::notify (this=0x89cfc90, receiver=0x8d73eb8, e=0xbfe8e1b0) at kernel/qapplication.cpp:3603
#21 0x011cf1aa in KApplication::notify (this=0x89cfc90, receiver=0x8d73eb8, event=0xbfe8e1b0) at ../../kdeui/kernel/kapplication.cpp:302
#22 0x0053c6cb in QCoreApplication::notifyInternal (this=0x89cfc90, receiver=0x8d73eb8, event=0xbfe8e1b0) at kernel/qcoreapplication.cpp:610
#23 0x005697ce in QCoreApplication::sendEvent (this=0x89f959c) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#24 QTimerInfoList::activateTimers (this=0x89f959c) at kernel/qeventdispatcher_unix.cpp:572
#25 0x005670e0 in timerSourceDispatch (source=0x89f9568) at kernel/qeventdispatcher_glib.cpp:165
#26 0x00c41e78 in g_main_dispatch (context=0x89f8e90) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:1960
#27 IA__g_main_context_dispatch (context=0x89f8e90) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2513
#28 0x00c45720 in g_main_context_iterate (context=0x89f8e90, block=<value optimized out>, dispatch=1, self=0x89f65e8) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2591
#29 0x00c45853 in IA__g_main_context_iteration (context=0x89f8e90, may_block=1) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2654
#30 0x0056702c in QEventDispatcherGlib::processEvents (this=0x89f68d0, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#31 0x042f1be5 in QGuiEventDispatcherGlib::processEvents (this=0x89f68d0, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#32 0x0053ac79 in QEventLoop::processEvents (this=0xbfe8e474, flags=) at kernel/qeventloop.cpp:149
#33 0x0053b0ca in QEventLoop::exec (this=0xbfe8e474, flags=...) at kernel/qeventloop.cpp:201
#34 0x0053d53f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#35 0x04250dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#36 0x015ff80d in kdemain (argc=1, argv=0x897c9e0) at ../../../../plasma/shells/desktop/main.cpp:50
#37 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x8997260 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#38 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#39 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#40 0x0804fbaf in main (argc=2, argv=0xbfe8ecd4, envp=0xbfe8ece0) at ../../kinit/kinit.cpp:1793

This bug may be a duplicate of or related to bug 209269

Reported using DrKonqi